Heater



Dee. 21 ,1926. 1,611,364

C. L. PARKER HEATER Filed Nov. 6. 1922 2 Sheets-Sheet 1 ATTORNEY Dec. 21,1926.

C. L. PARKER HEAT ER WITNESSEL ATI'ORNIY Patented i Dec. 21, 1926.

UNITED s TA Tas rlfrlslv'rFortier..4

:CHARLES LEBOY PARKER, 0F BARBERTO, OHIO, ASSIGNOR T0 THE DUNI-IAM COM-PANY'., QF BEREA, OHIO, A CORPORATION 0F OHIO.

HEATER.

Application tiled November 6, 1922. Serial No. 599,474.

My invention relates to improvements in heaters, andmore particularly tothat type lor class commonl knownaswater heaters.

The primary o ject of the invention is to provide a generally improvedheater of the class indicated which will be exceedingly cheap ofmanufacture, andeiicient in use. t

A further and very important object is the provision of an improvedheater flue or coil .for such heaters throughfthe provision of a novelconstruction and arrangement of heater coils and bailie forming loopscommunicating with the combustion and l1 uid circulating chambers,respectively. Y

ore s ecitcally stated, my improved heater `Hue em odies a plurality ofsuperposed linkshaped coils providing 'convolute gas assages andintermediate transversely e ongated or iattened hollow loops formingbaffles for diverting the` products of combustion into and throu h saidgas passages of said link-shaped -coi s," said ybailie forming loopscommunicating' with the' water or liquld chamber of the surroundingheater body.

A further and -very important object is the provision of an improved orheater body and coil `having its parts and features of construction sodisposed and arranged relative to each other` that the same may be castof suitable metal as a one-piece article of manufacture, therebyresulting in greater' economy in manufacture, use and eiiciency. vAstill further object is the provision of a one-piece or cast heaterprovided with a liquid circulating chamber' and an intgral orm heatingflue and having an improved and arranrrement of clean-out door at oneside ail'or ingaccess to the water chamber \\an il/,exterior portionsofthe heating Qflue orl With the above mentioned and other ends in view,the invention 'consists in the novel v construction, arrangement andCombination of parts, hereinafter described,illustrated in ,e one. 'ofits.. embodiments in the accompanying drawings, fand particularlypointed out like 'parts throughout all the figures of the drawings.

The improved heater body 1, may be of any suitable and', convenient formthat adapts itself to be readily cast as a one-piece body and withafclean-out opening at one side if desired. In the present instance, theheater body l is of square or rectangular shape forming a liquid orWater circulating chamber la, and a subjacent combustion or burnerchamber 2. In the present instance, the/heater body 1 is provided at oneside with a clean-out door opening 3, of relatively large dimensions, asshown, and surrounded'by border fia-nge 4, to make a tightl or liquidsealed joint withv the door or cover 5. In the present instance, theborder Harige 4 is provided with a series of bolt receiving openings Il,adapted to receive and carry a seriesof securing bolts 5, and securLinfr the cover 5 in position.

rrl'he heater -iiue 6 in the present'instance is cast integral with theheater body l and extends through the water circulating chamberL 1,terminating, inthe vpresent instance, at the top in a flange 7 forreceiving a suitva'ble chimney pipe for conducting the products ofcombustion to a chimney or other suitable outlet. top of the heater bodyis provided with threaded openings 8, one of which may be closed by asuitable plug and the other connected. to a suitable ,water pipe, athird threaded opening 9 being provided for a second conductory pipecommunicating with the lwater circulating chamber. In the presentvinstance, the heater flue 6 is .provide with an enlarged central portion10, and a series of vertically arranged superl posed double coils 11, asindicated. y

In the present instance, the v cross water passages 12,which,respectively,`

occupy the center-portion of the superimposed convolute coils, and, inaddition to their water circulation function, constitute bafflesoverlying the reduced neck portions of the structure which constitutethe communicating vcenter passages between the respective link-shapedconvolute passages. These water passages, being open at their ends, aorda plurality of cross connections leading through the flue to the waterspaces on opposite sides of the flue and serve to direct currents ofwater back" and forth directly -through the flue structure atdiferentlevels throughout the height thereof.

This arrangement insures that the prod! uets'of combustion will berepeatedly divided and alternatelyunited throughout their passagethrough theflue and further pro- Avides that \the products of combustionupwardly flowing in a united Acurrent through the centrally. disposed,reduced neck portions of the `flue will strike bodily against thebaliling walls of the cross water passages, so that the water at severaldifferent levels will be brought intodirect contact-with the unitedcentrally upfiowing gas stream in a manner to effectively insurethe-radiation of heat units and prevent an excessive escape of suchunitsfrom the top of the Hue.

The arrangement is one which provides not only for the'sinuous flow ofthe gaseous products of .combustion but also provides for a back andforth circulation of the water through the independent open-'ended crosswater passages at several levels which,

tends `to permit circulationand enlarge the radiating area of the flueto a highly desir` able extent.

Having thus described one of the embodiments of my invention, withouthaving attempted to set forth all the forms in which it may be made,orall the modes of its use, what I claim and-desire to secure by LettersPatent is,- A

1. In a waterrheater, the combination of an outer shell and an innerflue portion furnishing a water chamber betweenthe two,

. a combustion chamber vbelow the flue and freelyI communicatingtherewith, the' flueV being configured tolafford superposed pairs ofoutwardlyl protrudingl convolute gas passages separated from one anotherby open ended cross water passages opening into the water' chamber,adjoining pairs of convolute'gas passages being connected byintermediatemeck' portion for the passage of gases upwardly beneath thewalls of the superposed cross water passage, the latter forming a bafflefor diverting the up'- wardly flowing gases laterally into the convolutegas passages, and the iiue terminatformed therewith and freelycommunicating therewith, the l'lue being configured to af- Vif Afordsupczposed pairs of outwardly pretruding eonvolute gas passagesseparated from one another by open ended cross water passages openingdirectly into the watei chamber, thepairs of eonvolute gas passagesbeing connected by inter1nediate neck portions for the passage of gasesupwardly beneath the lwalls of the cross water passages` the latterforming ballles for diverting the upwardly iiowing gases laterally intothe convolute gas passages, and the flue terminating in a dischargepassage leading through the water chamber'and out of the shell,substantially as described.

3. In a water heater,4thecombination ot' an outer shell and an innerflue portion furnishing al water chamber between the two. a combustionchamber below the flue and freely communicating. therewith, the liucbeing configured to afford superposed pairs of outwardly protrudingconvolute gas passages separated from one another by open ended crosswater passages opening into the water chamber, the pairs of convolutegas passages being connected by intermediate neck portions for ,thepassage of gases up wardly beneath the walls of the cross waterpassages, the latter forming baffles for diverting the upwardly flowinggases laterally into the eonvo'lute gas passages, and the upper pair ofconvolute gas passages uniting in a discharge passage leading upwardlythrough the water chamber and out of the shell, substantially asdescribed.

4. In a water heater, the combination of an outer `shel1 'and an innerintegrally'r formed fine portion furnishing a water chamber between thetwo, a combustion chamber below the flue and integrally formedvtherewith and freely communicating. therewith, the flue 'beingconligured to af ford Snperposed pairs of outwardly protruding convolutegas passages separated from one another by open ended cross waterpassages" opening directly into the water chamber, `the pairsofconvolute gas pas-l sages being connected by intermediate neck ortionsfor the passage of gasesupwardlyr beneath the walls of the cross waterpassages, the--latter forming bailles for divert'- ing` the upwardlyflowing gases laterally into the convolute gas paages, and the upperpair` of convolute gas passages uniting ina discharge pass e leadingupwardly through the wat-er ber and out of the shell, substantially asdescribed.-

5. In a water heater, the combination of an outer' shell and an inner informed line portion a water chamber between the two, a combustionchamber Ybelow the ilue and. integrally formed therewith and freelycommunica therewith,l the flue being configured to a ford superposedpairs` of Youtwardly -protruding convolute passages separated from oneanother'by open ended cross water ture passages opening directly intothe water ward p'bemg connected by' intermediate unobstructed n'eckrtions. for the passage of gases upwardly neath the downwardlv converwalls of the cross water pase latter fo upper pair of convo ute gaspassages uniting in a discharge pleading upwardl through. the waterchamber and out of 30 t efslxell,` substantially as described.A

In whereof I aix-my signa- LEROY PRKER.

di 'ses s 25 A' theupw y owing gases ate y. iiitgo the convolutepassages, and thejr.

